T-splines computational membrane-cable structural mechanics with continuity and smoothness: II. Spacecraft parachutes
T-splines computational membrane-cable structural mechanics with continuity and smoothness: II. Spacecraft parachutes
复制标题
具有连续性和平滑性的 T 样条计算膜索结构力学：II。
DOI：
10.1007/s00466-022-02265-9
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发表时间：
2023
影响因子：
4.1
通讯作者：
T.E. Tezduyar
中科院分区：
文献类型：
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作者：
T. Terahara;K. Takizawa;R. Avsar;T.E. Tezduyar
在这篇文章的第二部分，我们提出了航天器降落伞结构力学计算的T样条计算方法介绍了第一部分。该方法及其实现，这也是在第一部分中给出的，是用于计算具有不同参数尺寸的结构连接的连续性和光滑性。该方法的基函数是在连接结构的2D和1D参数尺寸的情况下推导出来的。在第一部分中，2D结构被称为“膜”，1D结构被称为“缆线”。然而，该方法及其实施，当然也适用于其他2D-1D的情况下，在第一部分中提出的测试计算包括壳索结构。类似地，这里给出的航天器降落伞计算是用降落伞伞篷织物的膜和壳模型进行的。计算中使用的计算机模型是一个缩尺的风洞版本的带间隙带降落伞。计算结果表明了该方法在航天器降落伞二维-一维结构力学计算中的有效性。
In this second part of a two-part article, we present spacecraft parachute structural mechanics computations with the T-splines computational method introduced in the first part. The method and its implementation, which was also given in the first part, are for computations where structures with different parametric dimensions are connected with continuity and smoothness. The basis functions of the method were derived in the context of connecting structures with 2D and 1D parametric dimensions. In the first part, the 2D structure was referred to as “membrane” and the 1D structure as “cable.” The method and its implementation, however, are certainly applicable also to other 2D–1D cases, and the test computations presented in the first part included shell–cable structures. Similarly, the spacecraft parachute computations presented here are with both the membrane and shell models of the parachute canopy fabric. The computer model used in the computations is for a subscale, wind-tunnel version of the Disk–Gap–Band parachute. The computations demonstrate the effectiveness of the method in 2D–1D structural mechanics computation of spacecraft parachutes.